GAL16V8 - Generic Array Logic

Introduction

This project was created for self educational purposes and is used to simulate a GAL16V8. To accomplish this, the circuit was created using Digital a circuit simulator and VHDL.

About GAL16V8

The GAL is a programmable logic device with which one can program boolean, combinatorial or sequential circuits using source code. The GAL16V8 has 16 inputs of which 8 are in and outputs as well as a clock and enable.

How to use

1. Convert the .pld file to JEDEC with GALasm
   Optionally Digital can be used to create the JEDEC file (see documentation)
2. Convert the .jed file to hex with jedec2hex.py

Using VHDL

1. Input the .hex file path in the generic map of GAL16V8.vhd
2. Simulate with vhdl-2008

Using Digital

1. Open GAL16V8_Test.dig and change the hex file (Counter.hex default)
   Edit > Circuit specific settings > Advanced > Content of ROM's > Edit > Fuses > File > load
2. Change the inputs and outputs if required. (DO NOT CHANGE GND & VCC PINS) used for programming
3. Start simulation, wait till Ready led is on (programmed)